> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Ville Syrjala
> Sent: Monday, November 14, 2022 9:07 PM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Subject: [PATCH v3 06/20] drm/i915: Fix adl+ degamma LUT size
>
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> The degamma LUT is interpolated so we need the 128th (==1.0) entry to represent
> the full < 1.0 input range. Only the 129th and 130th entries are strictly for the >=1.0
> extended range inputs.
Looks Good to me.
Reviewed-by: Uma Shankar <uma.shankar@xxxxxxxxx>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_pci.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index
> 211913be40ce..c50841e36c61 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -948,7 +948,7 @@ static const struct intel_device_info adl_s_info = { #define
> XE_LPD_FEATURES \
> .display.abox_mask = GENMASK(1, 0), \
> .display.color = { \
> - .degamma_lut_size = 128, .gamma_lut_size = 1024, \
> + .degamma_lut_size = 129, .gamma_lut_size = 1024, \
> .degamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING |
> \
> DRM_COLOR_LUT_EQUAL_CHANNELS,
> \
> }, \
> --
> 2.37.4
